Discharging interlocking automatic device for micro-powder bin

Abstract

The utility model relates to the field of metering bin equipment, in particular to a micro powder bin discharging interlocking automatic device which comprises a bin body, a weighing module is arranged on the bin body, a discharging portion, a gas purging system, an electric control system and a time control switch are arranged at the bottom of the bin body, the discharging portion comprises a discharging port and a reducing elephant trunk connected with the discharging port, and the gas purging system is connected with the reducing elephant trunk. The gas blowing system comprises a gas storage tank and a gas spraying main pipe, a gas spraying pipe I and a gas spraying pipe II of which nozzles are positioned at the upper part of the discharging opening and are distributed on two sides in the discharging part as well as a gas spraying pipe III and a gas spraying pipe IV of which nozzles are positioned at the lower part of the discharging opening and are distributed on two sides in the discharging part are arranged between the gas spraying main pipe and the discharging part; the electric control system comprises a power source, an electromagnetic valve and a gate valve arranged on the reducing elephant trunk. The material outlet in the micro powder bin can be effectively dredged, a pipeline is not blocked, smooth discharging is guaranteed, the material conveying time is shortened, the production efficiency is improved, and the labor capacity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metering bin equipment, and concretely relates to a micro powder bin discharging interlocking automatic device. BACKGROUND

[0002] The lower structure of micro powder material (such as starch, flour etc.) temporary storage bin, metering bin etc. mostly adopts a cone, and since the bottom discharge is a contraction opening, the vertical downward pressure and the lateral side pushing force of the material accumulate in the narrow discharge opening, and due to the influence of the flowability of the material itself and the environmental humidity, it is easy to cause blockage and difficult to discharge, and currently, an electric vibrator is used to solve the material accumulation problem, and the material is dispersed by vibration after blockage is found, but the more vibration, the more material, and the reasons are that the water content of the material is too high, the air humidity is high in plum rain season, and the flowability of the material itself is poor, and secondly, the material blockage affects the timeliness and continuity of the discharge, and increases the amount of manual labor. In order to solve this problem, a discharging device needs to be designed. SUMMARY

[0003] In view of the above problems, the utility model provides a micro powder bin discharging interlocking automatic device, which solves the problem of easy blockage of the discharge opening of the metering bin.

[0004] The utility model solves its technical scheme: a micro powder bin discharging interlocking automatic device, including bin body, the weighing module is set up on the bin body, the bottom of bin body is equipped with discharging part, gas purging system, electric control system and time control switch, the discharging part includes discharge opening and the variable diameter slide pipe connected with the discharge opening, the gas purging system includes gas storage tank and jet main pipe, be equipped with the spray head between the jet main pipe and discharging part and be located the spray head in the discharge opening upper portion and distribute in the inside both sides of discharging part jet pipe no.

[0005] As optimization, the variable diameter slide pipe and the discharge opening are provided with an outlet flange.

[0006] As optimization, the inner diameter of the variable diameter slide pipe is greater than the inner diameter of the discharge opening.

[0007] As optimization, the end of the jet pipe no.

[0008] As optimization, the gas purging system, the electric control system and the time control switch are electrically connected.

[0009] As optimization, the jet main pipe is provided with an electromagnetic valve, a pneumatic actuator and a pneumatic stop valve.

[0010] As optimization, the upper part of the gas tank is provided with a safety valve, and the lower part is provided with a guide valve.

[0011] As optimization, the jet pipe one, the jet pipe two, the jet pipe three and the jet pipe four are all provided with check valves between the jet main pipe.

[0012] As optimization, the plug-in valve and the electromagnetic valve are provided with a pneumatic actuator.

[0013] The beneficial effects of the utility model are: the micro-powder bin discharge interlocking automatic device provided by the utility model is provided with a gas purging system, can effectively prevent material bridging at a narrow outlet, prevent the size of the outlet from being reduced after wet material sticks to the wall, ensure smooth discharge, avoid warehouse body vibration and displacement, protect the safety of the weighing module and ensure accurate measurement of the weighing system; the plug-in valve of the electric control system is interlocked and started, and the timing purging of the time control switch is added, automatic operation is realized, personnel monitoring is replaced, and the convenience of post personnel operation is improved; the setting of the variable diameter chute pipe realizes variable diameter discharge with narrow upper part and wide lower part, is beneficial to material flow, and when discharging, the enlarged pipeline at the bottom of the discharge port forms a siphon to the discharge port position, which can accelerate the downward flow of the material, reduce the operation time of the upstream and downstream conveying equipment, and improve work efficiency. The device can effectively dredge the material outlet and pipeline in the micro-powder bin, ensure smooth discharge, shorten the material conveying time, improve production efficiency and reduce the labor amount of personnel. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Among them: 1, the warehouse body, 2, the weighing module, 3, the discharge port, 4, the variable diameter chute pipe, 5, the gas tank, 6, the jet main pipe, 7, the jet pipe one, 8, the jet pipe two, 9, the jet pipe three, 10, the jet pipe four, 11, the power supply, 12, the electromagnetic valve, 13, the plug-in valve, 14, the pneumatic actuator, 15, the pneumatic stop valve, 16, the safety valve, 17, the guide valve, 18, the check valve. DETAILED DESCRIPTION

[0016] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] For ease of description, the words "up," "down," "left," and "right" appearing in this utility model only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figure 1 As shown, an automatic interlock device for discharging micro powder silos includes a silo body 1, a weighing module 2 on the silo body 1, a feeding section, a gas purging system, an electrical control system, and a timer switch at the bottom of the silo body 1. The feeding section includes a feeding port 3 and a variable diameter chute 4 connected to the feeding port 3. The gas purging system includes a gas storage tank 5 and a jet pipe 6. A jet pipe 7 and a jet pipe 8 with nozzles located above the feeding port 3 and distributed on both sides inside the feeding section are provided between the jet pipe 6 and the feeding section. A jet pipe 9 and a jet pipe 10 with nozzles located below the feeding port 3 and distributed on both sides inside the feeding section are also provided. The electrical control system includes a power supply 11, a solenoid valve 12, and a gate valve 13 installed on the variable diameter chute 4. The jet pipe 6 is equipped with a solenoid valve 12, a pneumatic actuator 14, and a pneumatic shut-off valve 15. The gas purging system, the electrical control system, and the timer switch are all electrically connected. The power supply for the pneumatic shut-off valve on the jet system and the power supply for the slide gate valve on the electronic control system are connected in parallel. When the slide gate valve 13 is activated and opened, the jet system acts on the electric shut-off valve at regular intervals via a timer switch, using interlocked electronic control for automatic purging to automatically clear the discharge port 3 and ensure continuous material discharge. The timer switch cycle is set, generally opening once per minute and jetting for five seconds as one cycle. The purging cycle can also be extended or shortened according to the smoothness of material discharge on site to save air volume and facilitate material discharge. A pneumatic actuator 14 is provided between the slide gate valve 13 and the solenoid valve 12.

[0020] An outlet flange is provided between the reducing chute 4 and the discharge port 3, and the inner diameter of the reducing chute 4 is larger than the inner diameter of the discharge port 3.

[0021] The end of the jet pipe one 7, the jet pipe two 8, the jet pipe three 9 and the jet pipe four 10 is equipped with a jet nozzle, the jet nozzle is a compressed air jet head, the jet pipe one 7, the jet pipe two 8, the jet pipe three 9 and the jet pipe four 10 are equipped with a check valve 18 between the jet pipe one 7, the jet pipe two 8, the jet pipe three 9 and the jet pipe four 10 and the jet main pipe 6, preventing material from entering the air pipe.

[0022] The upper portion of the gas storage tank 5 is equipped with a safety valve 16, and the lower portion is equipped with a guide valve 17, the capacity of the gas storage tank 5 should be greater than one cubic, and the shorter the distance from the gas purging system is better, which can ensure sufficient gas and reduce the gas pressure loss of the pipeline, the pressure of the gas storage tank 5 is kept at 0.3-0.4mpa, the main pipeline from the gas storage tank 5 to the stop valve adopts 20-25mm in diameter, and the pipeline from the pneumatic valve to the nozzle is 15mm in diameter.

[0023] Working principle: the micro-powder bin discharging interlocking automatic device provided by the utility model, when the plug valve 13 is started to open, the time control switch is connected to the electromagnetic valve 12 of the pneumatic stop valve 15 to supply power according to the set cycle, and the electromagnetic valve 12 controls the opening and closing of the stop valve to perform purging work. High-pressure air injection accelerates the flow of materials, increases the siphon effect of the reducing pipe 4, prevents the material on the wall of the discharge port 3 from sticking, and makes the wall smooth to reduce the resistance of the material flow, so as to achieve interlocking automatic auxiliary discharging, save the labor of the operator, improve the production efficiency and reduce the production cost.

[0024] The device is suitable for discharging of various micro-powder bins, and a plurality of adjustments such as the number and size of the nozzles, the size of the discharging chute, the purging pressure and the purging cycle are made according to the actual equipment size and material characteristics, so as to meet the needs of different equipment.

[0025] The above specific embodiments are only specific cases of the utility model, and the patent protection scope of the utility model includes but is not limited to the product forms and styles of the above specific embodiments, and any appropriate changes or modifications made by any ordinary skilled person in the art to the utility model claims shall fall within the patent protection scope of the utility model.

Claims

1. A micro-powder bin discharging interlock automatic device, comprising a bin body, a weighing module is arranged on the bin body, characterized in that, The bottom of the bin body is provided with a discharging part, a gas purging system, an electric control system and a time control switch, the discharging part comprises a discharging port and a variable-diameter chute connected with the discharging port, the gas purging system comprises a gas storage tank and a gas injection main pipe, between the gas injection main pipe and the discharging part are provided with a spray head, a first gas injection pipe and a second gas injection pipe which are located at the upper part of the discharging port and are distributed on both sides of the inside of the discharging part, and a third gas injection pipe and a fourth gas injection pipe which are located at the lower part of the discharging port and are distributed on both sides of the inside of the discharging part, the electric control system comprises a power supply, a solenoid valve and a plug valve provided on the variable-diameter chute.

2. The micro-powder bin discharging interlocking automatic device according to claim 1, characterized in that, An outlet flange is arranged between the variable-diameter chute and the discharging port.

3. The micro-powder bin discharging interlocking automatic device according to claim 2, characterized in that, The inner diameter of the variable-diameter chute is larger than the inner diameter of the discharging port.

4. The micro-powder bin discharging interlocking automatic device according to claim 1, characterized in that, The end of the first gas injection pipe, the second gas injection pipe, the third gas injection pipe and the fourth gas injection pipe is provided with a gas injection nozzle.

5. The micro-powder bin discharging interlocking automatic device according to claim 1, characterized in that, The gas purging system, the electric control system and the time control switch are electrically connected.

6. The micro-powder bin discharging interlocking automatic device according to claim 1, characterized in that, The gas injection main pipe is provided with a solenoid valve, a pneumatic actuator and a pneumatic stop valve.

7. The micro-powder bin discharging interlocking automatic device according to claim 1, characterized in that, The upper part of the gas storage tank is provided with a safety valve, and the lower part is provided with a pilot valve.

8. The micro-powder bin discharging interlocking automatic device according to claim 4, characterized in that, The first gas injection pipe, the second gas injection pipe, the third gas injection pipe and the fourth gas injection pipe are provided with a check valve between the gas injection main pipe.

9. The micro-powder bin discharging interlocking automatic device according to claim 1, characterized in that, The plug valve and the solenoid valve are provided with a pneumatic actuator.

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